10L Liquid nitrogen generator Technical scheme:
10L Liquid nitrogen generator (liquid nitrogen machine) equipment consists of nitrogen generator (built-in or external), refrigeration equipment (gas liquefaction equipment) and Dewar tank. The whole machine has a one-key start-up automatic refilling function. When the liquid nitrogen in the liquid nitrogen tank is lower than the set liquid level, the device automatically starts. The manufacture of liquid nitrogen machine adopts the principle of throttling refrigeration of mixed working medium, which cools nitrogen from ambient temperature to the saturation condensation temperature of nitrogen liquefaction step by step. To store in the liquid nitrogen tank to obtain liquid nitrogen, the equipment automatically detects the liquid nitrogen level in the Dewar tank, and automatically controls the operation of the equipment.
- The main configuration:
1.) The compressor adopts German fully enclosed low temperature refrigeration compressor.
2.) Liquid nitrogen level sensor: Mike automation instrument.
3.) Dewar: Weidejie, Blue Mountain.
4. ) Electric control part: PLC
5. ) Independently design and develop man-machine interface control system.
6. ) Refrigeration accessories are all world-renowned brands: Japan Saginata solenoid valve, Danfoss throttle valve,
Danvers filter, etc.;
7.) Temperature detection uses PT100 platinum resistance and T-type thermocouple, both of which have high reliability and long-term stability.life characteristics;
Technical parameters of 10L liquid nitrogen generator:
Main technical performance parameters of LN-10L small liquid nitrogen machine equipment
| S/N | Item | Spec. | Executive standard |
| 1 | Built-in nitrogen generator (including air compressor) PSA pressure swing adsorption | Nitrogen purity >98%, dew point temperature -70℃, air pressure 6bar, power consumption 750w | GB |
| 2 | Refrigeration Compressors | 1.5P German Bock | GB |
| 3 | Mixed working medium refrigeration freezer | Minimum cooling temperature -196℃, cooling capacity 70w, power consumption 1500w | GB（Independent research and development） |
| 4 | Built-in Dewar | 20L，316stainless steel | GB（Independent research and development） |
| 5 | Liquid nitrogen production | 8L-15L/day | |
| 6 | Net size of liquid nitrogen machine | 740mm*600mm*1600mm | |
| 7 | Liquid nitrogen ruler (including packaging) | 760mm*620mm*1800mm | |
| 8 | Liquid nitrogen machine weight | ≈200kg | |
| 9 | Working power, whole machine power | 220V50HZ、2.2kW | |
| 10 | Cooling method | Air cooling | GB |
| 11 | Touch screen | One-button automatic control system | Independent research and development |
| 12 | Pre-cooling time | 80min | |
| 13 | Liquid level sensor | Capacitive | GB |
| 14 | Shell | Cold rolled steel spraying | |
| 15 | Noise | <70dB | |
| 16 | Ambient temperature | 4°-35° | |
| 17 | Sterilize | Sterilization filter |
Equipment advantages:
1.) Our liquefaction system uses advanced mixed refrigerant (MR) refrigerant.
2.) Compared with the traditional GM machine cold head, the mixed refrigerant compression refrigeration system has the characteristics of high reliability and long service life without regular maintenance.
3.) All cryogenic pipe fittings are all vacuum insulated pipes to reduce the loss of cooling capacity.
4.) Touch-type color Chinese and English operation interface.
5.) The equipment has the function of automatic rehydration.
Beside liquid nitrogen generator,we also have gas nitrogen generator.